“Blood Meridian” has distinct echoes of “Moby-Dick,” McCarthy’s favorite book. A mad hairless giant named Judge Holden makes florid speeches not unlike Captain Ahab’s. Based on historical events in the Southwest in 1849-50 (McCarthy learned Spanish to research it), the book follows the life of a mythic character called “the kid” as he rides around with John Glanton, who was the leader of a ferocious gang of scalp hunters. The collision between the inflated prose…